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openmptcprouter/root/target/linux/brcm2708/patches-4.19/0296-firmware-raspberrypi-Report-the-fw-git-hash-during-p.patch
2019-04-22 17:10:09 +02:00

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From 1926dba6155c235418b6ad800112815e16b81c56 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
Date: Thu, 10 Jan 2019 18:48:54 +0000
Subject: [PATCH 296/432] firmware: raspberrypi: Report the fw git hash during
probe
The firmware can now report the git hash from which it was built
via the mailbox, so report it during probe.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
---
drivers/firmware/raspberrypi.c | 17 +++++++++++++++++
include/soc/bcm2835/raspberrypi-firmware.h | 1 +
2 files changed, 18 insertions(+)
diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c
index f020855f315b..fcbfe5d0015e 100644
--- a/drivers/firmware/raspberrypi.c
+++ b/drivers/firmware/raspberrypi.c
@@ -262,6 +262,22 @@ rpi_firmware_print_firmware_revision(struct rpi_firmware *fw)
tm.tm_min, variant_str);
}
+static void
+rpi_firmware_print_firmware_hash(struct rpi_firmware *fw)
+{
+ u32 hash[5];
+ int ret = rpi_firmware_property(fw,
+ RPI_FIRMWARE_GET_FIRMWARE_HASH,
+ hash, sizeof(hash));
+
+ if (ret)
+ return;
+
+ dev_info(fw->cl.dev,
+ "Firmware hash is %08x%08x%08x%08x%08x\n",
+ hash[0], hash[1], hash[2], hash[3], hash[4]);
+}
+
static void
rpi_register_hwmon_driver(struct device *dev, struct rpi_firmware *fw)
{
@@ -308,6 +324,7 @@ static int rpi_firmware_probe(struct platform_device *pdev)
g_pdev = pdev;
rpi_firmware_print_firmware_revision(fw);
+ rpi_firmware_print_firmware_hash(fw);
rpi_register_hwmon_driver(dev, fw);
return 0;
diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h
index 17f8fe3b5d2c..23b9d356537f 100644
--- a/include/soc/bcm2835/raspberrypi-firmware.h
+++ b/include/soc/bcm2835/raspberrypi-firmware.h
@@ -42,6 +42,7 @@ enum rpi_firmware_property_tag {
RPI_FIRMWARE_PROPERTY_END = 0,
RPI_FIRMWARE_GET_FIRMWARE_REVISION = 0x00000001,
RPI_FIRMWARE_GET_FIRMWARE_VARIANT = 0x00000002,
+ RPI_FIRMWARE_GET_FIRMWARE_HASH = 0x00000003,
RPI_FIRMWARE_SET_CURSOR_INFO = 0x00008010,
RPI_FIRMWARE_SET_CURSOR_STATE = 0x00008011,
--
2.19.1